回复：重贴：请求：让它匿名？
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当你向一个比特币地址发送时，你不会连接收款方。你把交易发送到网络，方式与你中继交易相同。在广播过程中，你自己发起的交易与从另一个节点收到后由你中继的交易没有区别。不过，当网络非常小时，还是有人可能通过排除法推断出来。等网络扩大后，情况会更好。
如果你通过 IP 发送，收款方会看到你，因为你连接到了对方的 IP。你可以使用 TOR 来掩盖这一点。
如果你不想让任何人知道你甚至在使用比特币，也可以使用 TOR。
比特币仍然非常新，还没有经过独立分析。如果你非常重视隐私，使用 TOR 是一项明智的预防措施。
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When you send to a bitcoin address, you don't connect to the recipient. You send the transaction to the network the same way you relay transactions. There's no distinction between a transaction you originated and one you received from another node that you're relaying in a broadcast. With a very small network though, someone might still figure it out by process of elimination. It'll be better when the network is larger.
If you send by IP, the recipient sees you because you connect to their IP. You could use TOR to mask that.
You could use TOR if you don't want anyone to know you're even using Bitcoin.
Bitcoin is still very new and has not been independently analysed. If you're serious about privacy, TOR is an advisable precaution.